Open Access

Inhibition of miR‑186‑5p contributes to high glucose‑induced injury in AC16 cardiomyocytes

  • Authors:
    • Jiamei Jiang
    • Hailiang Mo
    • Chang Liu
    • Bin Wu
    • Zijun Wu
    • Xingyue Li
    • Teng Li
    • Songjian He
    • Shanghai Li
    • Qiong You
    • Keng Wu
    • Runmin Guo
  • View Affiliations

  • Published online on: November 6, 2017     https://doi.org/10.3892/etm.2017.5445
  • Pages:627-632
  • Copyright: © Jiang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

A growing body of evidence has demonstrated that microRNAs (miRs) have pivotal roles in the pathophysiological development mechanisms of diabetic cardiomyopathy (DCM). Previous studies have demonstrated that miR‑186‑5p was significantly decreased in DCM. In addition, it has recently been reported that an imbalance of miR‑186 is associated with a variety of physiological and pathological processes. Therefore, the present study was designed to investigate the role of miR‑186‑5p in high glucose (HG)‑induced cytotoxicity and apoptosis in AC16 cardiomyocytes. Reverse transcription‑polymerase chain reaction was used to demonstrate the significant decrease in the level of miR‑186‑5p in HG‑treated AC16 cells (P<0.05). Subsequently, it was clarified that pre‑transfection with miR‑186‑5p mimic significantly ameliorated the effects of high glucose, which induced a significant decrease in the viability of AC16 cells (P<0.05) and increases in apoptosis, as evidenced by the appearance of apoptotic nucleus and the significant upregulation of apoptosis rate in AC16 cells (P<0.05). In addition, the significantly increased expression of caspase‑3 induced by HG (P<0.01) was also reversed by miR‑186‑5p mimic (P<0.01). Conversely, transfection with miR‑186‑5p inhibitor significantly reduced the viability of AC16 cells (P<0.05) and promoted apoptosis (P<0.05) as well as the expression of caspase‑3 in AC16 cells (P<0.01), indicating the beneficial role of miR‑186‑5p in the physiological process of HG‑induced damage. In conclusion, these results suggest that the distribution of miR‑186‑5p contributes to HG‑induced cytotoxicity and apoptosis in AC16 cardiomyocytes.

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January 2018
Volume 15 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

2016 Impact Factor: 1.261
Ranked #50/128 Medicine Research and Experimental
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APA
Jiang, J., Mo, H., Liu, C., Wu, B., Wu, Z., Li, X. ... Guo, R. (2018). Inhibition of miR‑186‑5p contributes to high glucose‑induced injury in AC16 cardiomyocytes. Experimental and Therapeutic Medicine, 15, 627-632. https://doi.org/10.3892/etm.2017.5445
MLA
Jiang, J., Mo, H., Liu, C., Wu, B., Wu, Z., Li, X., Li, T., He, S., Li, S., You, Q., Wu, K., Guo, R."Inhibition of miR‑186‑5p contributes to high glucose‑induced injury in AC16 cardiomyocytes". Experimental and Therapeutic Medicine 15.1 (2018): 627-632.
Chicago
Jiang, J., Mo, H., Liu, C., Wu, B., Wu, Z., Li, X., Li, T., He, S., Li, S., You, Q., Wu, K., Guo, R."Inhibition of miR‑186‑5p contributes to high glucose‑induced injury in AC16 cardiomyocytes". Experimental and Therapeutic Medicine 15, no. 1 (2018): 627-632. https://doi.org/10.3892/etm.2017.5445